Green swordtails alter their age at maturation in response to the population level of male ornamentation
Green swordtails alter their age at maturation in response to the population level of male ornamentation
复制标题
绿色剑尾鱼根据雄性装饰的种群水平改变成熟年龄
作者：
C. Walling;N. Royle;N. Metcalfe;J. Lindström
社会环境对性成熟年龄的影响被认为需要直接的相互作用，例如通过统治者的侵略来压制下属。使用绿色剑尾鱼（剑尾鱼helleri），我们证明了第一次，女性和男性调整他们的年龄在成熟时，在当前环境中的男性性取向的视觉线索：女性成熟较早，而男性成熟较晚，如果所有的成熟男性看到有大的装饰品。因此，年龄在成熟转移根据感知质量的配偶（女性）或交配竞争对手（男性），展示了能力，使用视觉线索从环境中的战略调整率的性发育。
Effects of the social environment on age at sexual maturation are assumed to require direct interactions, such as suppression of subordinates through aggression from dominants. Using green swordtails (Xiphophorus helleri), we demonstrate for the first time that females and males adjust their age at maturation in response to visual cues of male sexual ornamentation in the current environment: females matured earlier, whereas males matured later if all the mature males seen had large ornaments. Thus, age at maturation shifted in accordance with the perceived quality of mates (females) or mating competitors (males), demonstrating a capability to use visual cues from the environment to strategically adjust rates of sexual development.